Mid Missouris branch of Culligan. One of the most valuable benefits Culligan offers our customers is expertise. Water is our business. It has been our sole focus here in mid Missouri since 1943. Our customers have come to rely on us for honest, accurate answers to all of their water needs. We honor this trust with a commitment to the continuing education of all of our sales, service, production and installation personnel. We ensure that each of them has an in-depth understanding of the latest treatment technology and how to apply it to provide our customers with the most effective and economic solutions available to address their unique water needs.